Hyundai Sonata: Engine Control System / Ambient Temperature Sensor (ATS) Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System / Ambient Temperature Sensor (ATS) Description and Operation

Description

Ambient Temperature Sensor (ATS) is installed on the front-end module and senses the ambient temperature. ECM receives not only the intake air temperatue but also the ambient air temperature informations at the same time to control the intake air quantity precisely provided through the turbo charger. The electrical resistance of the thermistor decreases as the temperature increases, and increases as the temperature decreases This sensor has a Negative Temperature Coefficient (NTC) and its resistance is in inverse proportion to the temperature.

Intake Air Temperature Sensor (IATS) Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the IATS connector. 3. Measure resistance between the IATS terminals 3 and 4. 4. Check that the resistance is within the speci ...

Ambient Temperature Sensor (ATS) Specifications

Specification Temperature[°C(°F)]Resistance(k?) -40(-40)841.2~1019.3 -20(-4)263.8~306.50(32)92.4~102.810(50)57.0~62.220(68)36.2~38.840(104)15.3~16.750(122)10.3~11.460(140)7.1~8.080(17 ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Overhead Console Lamp Repair procedures
Inspection 1. Remove the overhead console lamp assembly then check for continuity between terminals. If the continuity is not as specified, replace the map lamp switch. Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the mounting screws (2EA). And then remove the ...

Hyundai Sonata LF 2014-2019 Service Manual: Front Seat Assembly Repair procedures
Replacement • When folding the seatback forward in state that headrest and seat is upper and seat is moved forward, be careful not to touch the components such as sunvisor. 1. Remove the front anchor seat belt. (Refer to Restraint - "EFD (Emergency Fastening ...